sodium hydroxide

noun Chemistry.
a white, deliquescent, water-soluble solid, NaOH, usually in the form of lumps, sticks, chips, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of other chemicals, rayon, film, soap, as a laboratory reagent, and in medicine as a caustic.
Also called caustic soda, soda.


Origin:
1880–85

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To sodium hydroxide
Collins
World English Dictionary
sodium hydroxide
 
n
See also lye Also called: caustic soda a white deliquescent strongly alkaline solid used in the manufacture of rayon, paper, aluminium, soap, and sodium compounds. Formula: NaOH

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

sodium hydroxide n.
A strongly alkaline compound used externally. Also called caustic soda.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
sodium hydroxide  
A white, corrosive, solid compound that absorbs water and carbon dioxide from the atmosphere and forms lye when in solution. Sodium hydroxide is toxic and strongly alkaline and is used to make chemicals and soaps and to refine petroleum. Chemical formula: NaOH.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Oxalic acid is made commercially by treating either sugar with nitric acid or cellulose with sodium hydroxide.
Sodium hydroxide spontaneously dissolves in water and releases heat in the process.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature